Insects, easily. They account for about 75% of the entire animal kingdom, including vertebrates! ^^
In species numbers, Arthropoda (insects, arachnids, crustaceans, centi/millipedes). 4 out of 5 species on the planet are arthropods. :D
The most successful invertebrate phylum in terms of species diversity is Arthropoda, which includes insects, spiders, crustaceans, and other related groups. Arthropods make up the majority of known animal species, with over a million described species and estimated to make up around 80% of all animal species. Their success is attributed to their diverse body plans, ability to adapt to different environments, and evolutionary innovations.
No, an olm is not an invertebrate. It is a species of aquatic salamander belonging to the order Caudata, which are vertebrates.
All species of flies are invertebrates.
Invertebrates doesn't have backbones. A jellyfish is an invertebrates.
arthopods
The octopus is an invertebrate animal (it has no backbone) and belong to the phylum (group) Mollusca. Its closest relatives are the various species of squid and cuttlefish.
An invertebrate has no backbone. This differentiates them from vertebrates, which do have a backbone or spinal column. Invertebrates make up the vast majority of animal species on Earth.
Abundance of food determines macro-invertebrate abundance and diversity. Species can thrive when there is an abundance of their food sources.
The length of an average butterfly tends to be between 8 to 12 inches. Each butterfly species will have a different invertebrate length.
All species of bears are mammals, have spines, so are vertebrates.
INVERTEBRATE: An animal lacking a backbone OMNIVORE: An animal or person that eats food of both plant and animal origin.